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cef95fdc2e
It returns the string of the error constant, not its description (as
strerrordesc_np). To handle the Hurd error mapping, the ERR_MAP was
removed from errlist.h to errlist.c.
Also, the testcase test-strerr (added on 325081b9eb) was not added
on the check build neither it builds correctly. This patch also
changed it to decouple from errlist.h, the expected return values
are added explicitly for both both strerrorname_np and strerrordesc_np
directly.
Checked on x86_64-linux-gnu and i686-linux-gnu. I also run a make
check for i686-gnu.
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <errno.h>
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#include <libintl.h>
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#include <array_length.h>
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#ifndef ERR_MAP
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# define ERR_MAP(n) n
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#endif
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const char *const _sys_errlist_internal[] =
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{
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#define _S(n, str) [ERR_MAP(n)] = str,
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#include <errlist.h>
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#undef _S
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};
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const char *
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__get_errlist (int errnum)
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{
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if (errnum >= 0 && errnum < array_length (_sys_errlist_internal))
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return _sys_errlist_internal[errnum];
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return NULL;
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}
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static const union sys_errname_t
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{
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struct
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{
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#define MSGSTRFIELD1(line) str##line
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#define MSGSTRFIELD(line) MSGSTRFIELD1(line)
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#define _S(n, str) char MSGSTRFIELD(__LINE__)[sizeof(#n)];
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#include <errlist.h>
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#undef _S
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};
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char str[0];
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} _sys_errname = { {
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#define _S(n, s) #n,
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#include <errlist.h>
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#undef _S
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} };
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static const unsigned short _sys_errnameidx[] =
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{
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#define _S(n, s) \
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[ERR_MAP(n)] = offsetof(union sys_errname_t, MSGSTRFIELD(__LINE__)),
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#include <errlist.h>
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#undef _S
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};
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const char *
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__get_errname (int errnum)
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{
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if (errnum < 0 || errnum >= array_length (_sys_errnameidx)
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|| (errnum > 0 && _sys_errnameidx[errnum] == 0))
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return NULL;
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return _sys_errname.str + _sys_errnameidx[errnum];
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}
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#include <errlist-compat.c>
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